题目内容
列竖式计算.
| 319×24= | 208×45= | 320×20= |
319×24=7656;
319
;
208×45=9360;
208
;
320×20=6400;
320
.
319
| ×24 |
| 1276 |
| 638 |
| 7656 |
208×45=9360;
208
| ×45 |
| 1040 |
| 832 |
| 9360 |
320×20=6400;
320
| ×20 |
| 6400 |
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